制备与表征
(北京航空航天大学 材料科学与工程学院， 北京 100083)
摘 要:
关键字: 镍纳米线；氧化铝模板；电沉积；晶体结构
electrodeposition in anodic alumina membrane
（School of Materials and Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100083）
Abstract: The nickel nanowires were prepared directly by electrodeposition in anodic alumina membrane (AAM) after modification of AAM. The structure and topography of nanowires were characterized by SEM, TEM and XRD. The effect of deposition voltage on texture of nickel nanowires was studied. The results show that the morphologies of nickel nanowires depend on anodic alumina membrane. The diameter and length of nanowires are separately affected by pore diameter of AAM and deposition time. The nickel nanowires are poly-crystalline when the deposition voltages are low, such as 1 V, 1.5 V and 2 V. The nickel nanowires change to single crystal with a preferred orientation along [220] when the depositon voltages become larger, such as 3 V and 4 V. The preferred orientation transforms from [220] to [111] with further increase of deposition voltage (5 V).
Key words: nickel nanowires; anodic alumina membrane; electrodeposition; crystalline structure
